You might take out professional indemnity insurance if you give professional advice or perform services to customers through the course of your work.
Professional indemnity insurance protects you from legal action taken against you if someone suffers a loss after following your professional advice or as a result of your receiving your service. There are also specific types of professional indemnity insurances for certain professionals. For example, the medical profession will usually have medical indemnity insurance as requirement of their professional registration or licensing.
RMA Insurance Brokers can discuss the broad range of covers and the exposures that your business and occupation faces.